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Question

Match the following

FunctionsDerivatives(a)sin x1)sin x(b)cos x2)sec2x(c)tan x3)cos x(d)sec x4)cosec2x(e)cot x5)sec x tan x(f)cosec x6)cosecx cot x

A
a – 1, b – 3, c – 2, d – 4, e – 5, f – 6
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B
a – 3, b – 1, c – 2, d – 5, e – 4, f – 6
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C
a – 2, b – 1, c – 3, d – 5, e – 4, f – 6
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D
None of the above
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Solution

The correct option is B a – 3, b – 1, c – 2, d – 5, e – 4, f – 6
As mentioned in the videos, the derivatives of trigonometric functions are as follows.
sin xcos xcos xsin xtan xsec2xsec xsecxtanxcot xcosec2xcosec xcosec x cotx
For problem solving and to save the time they should be remembered. In case you forget any of them, you can use the first principle to evaluate the derivative.

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